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[PATCHv2,1/3] omap: Add new interface omap_get_die_id

Message ID 1278378604-15802-2-git-send-email-kanru@0xlab.org (mailing list archive)
State Accepted
Commit d4232822b4712464320e710160170a327227db65
Delegated to: Tony Lindgren
Headers show

Commit Message

Kan-Ru Chen July 6, 2010, 1:10 a.m. UTC 
None
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Patch

diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index 37b8a1a..80bd1cd 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -25,6 +25,8 @@ 
 #include <plat/control.h>
 #include <plat/cpu.h>
 
+#include <mach/id.h>
+
 static struct omap_chip_id omap_chip;
 static unsigned int omap_revision;
 
@@ -102,6 +104,14 @@  static struct omap_id omap_ids[] __initdata = {
 static void __iomem *tap_base;
 static u16 tap_prod_id;
 
+void omap_get_die_id(struct omap_die_id *odi)
+{
+	odi->id_0 = read_tap_reg(OMAP_TAP_DIE_ID_0);
+	odi->id_1 = read_tap_reg(OMAP_TAP_DIE_ID_1);
+	odi->id_2 = read_tap_reg(OMAP_TAP_DIE_ID_2);
+	odi->id_3 = read_tap_reg(OMAP_TAP_DIE_ID_3);
+}
+
 void __init omap24xx_check_revision(void)
 {
 	int i, j;
diff --git a/arch/arm/mach-omap2/include/mach/id.h b/arch/arm/mach-omap2/include/mach/id.h
new file mode 100644
index 0000000..02ed3aa
--- /dev/null
+++ b/arch/arm/mach-omap2/include/mach/id.h
@@ -0,0 +1,22 @@ 
+/*
+ * OMAP2 CPU identification code
+ *
+ * Copyright (C) 2010 Kan-Ru Chen <kanru@0xlab.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef OMAP2_ARCH_ID_H
+#define OMAP2_ARCH_ID_H
+
+struct omap_die_id {
+	u32 id_0;
+	u32 id_1;
+	u32 id_2;
+	u32 id_3;
+};
+
+void omap_get_die_id(struct omap_die_id *odi);
+
+#endif